Appending combinations with Combo Generator

[Zedster]

Hello all,

 

Am I just stupid or is there no way to append more combinations to an items list of combinations with the combo generator. Meaning for example.  I have an item that I have made some combinations with a certain type of attachment. Now I want to keep those and add more combos of the same item but with different attachments.  I can't do these all at once as some of the colors of one attachment are not available in the the other.  Yes I know I can go back and delete those not needed but that is very time consuming and not very optimal.

 

I hope I am missing something because this just seems so basic to me.  I am using version 1.5.X by the way.

 

Thanks for any help.